Animal Diversity: 2026 Release ISE

Cleveland P. Hickman, Jr., Professor Emeritus of Biology at Washington and Lee University in Lexington, Virginia, has taught zoology and animal physiology for more than 30 years. He received his Ph.D. in comparative physiology from the University of British Columbia, Vancouver, B.C., in 1958 and taught animal physiology at the University of Alberta before moving to Washington and Lee University in 1967. He has published numerous articles and research papers in fish physiology, in addition to co-authoring these highly successful texts: Integrated Principles of Zoology, Biology of Animals, Animal Diversity, Laboratory Studies in Animal Diversity, and Laboratory Studies in Integrated Principles of Zoology. Susan Keen is Lecturer at the Section of Evolution and Ecology of University of California. Allan Larson is an Associate Professor at Washington University, St. Louis, MO.  He received his Ph.D. in Genetics at the University of California, Berkeley.  His fields of specialization include Evolutionary Biology, Molecular Population Genetics and Systematics, and Amphibian Systematics.  He's taught courses in general biology, evolution, and population biology.  David J. Eisenhour an Associate Professor of Biology at Morehead State University.

• 1. Science of Zoology and Evolution of Animal Diversity2. Animal Ecology3. Animal Architecture4. Taxonomy and Phylogeny of Animals5. Unicellular Eukaryotes6. Sponges: Phylum Porifera7. Cnidarians and Ctenophores8. Xenacoelomorpha, Platyhelminthes,Gastrotricha, Gnathifera, including Chaetognatha, and Mesozoa,9. Polyzoa and Trochozoa: Cycliophora, Entoprocta, Ectoprocta, Brachiopoda, Phoronida, and Nemertea10. Molluscs11. Annelids12. Smaller Ecdysozoans13. Arthropods14. Echinoderms and Hemichordates15. Vertebrate Beginnings: The Chordates16. Fishes17. The Early Tetrapods and Modern Amphibians18. Amniote Origins and Nonavian Reptiles19. Birds20. Mammals